Business Email Compromise: What It Is and How to Prevent It

Business email compromise (BEC) is a direct attack on a business through email. During the last 10 years, business email compromise scams have been estimated to cost organizations more than $55 billion globally, making them one of the most financially harmful cybercrimes. This type of attack exploits corporate email systems to induce employees, partners, or customers to make unauthorized payments or share confidential data.

A BEC attack is a sophisticated scam targeting companies to steal confidential information by impersonating company employees, mostly executives. BEC attacks are among the fastest-growing cyber threats. And the global impact of BEC attacks continues to escalate, affecting organizations worldwide. Understanding how BEC attackers work, recognizing warning signs, and preventing losses are crucial for any business to protect its reputation and financial well-being from future attacks.

This article will explore the business email compromise definition, how it works, examples of attacks, and how to prevent it. Want to stop company email compromise? Continue reading for research-backed, real-world answers.

What is business email compromise (BEC)? A simple explanation

BEC or Business Email Compromise is an advanced form of online fraud that attacks business organizations by breaching or impersonating legitimate business email accounts. It aims to make a victim send money or give personal information, including bank accounts, that will give the scammer access to the system. The most common type of BEC attacks consists of an attacker impersonating a senior executive or an employee and asking them to tweet donated funds immediately, including incoming messages that may seem legitimate.

Unlike older methods of phishing, BEC frauds are extremely specific, and they include extensive research on the targeted company. It is a form of cyberattack during which successful BEC attacks are conducted when scammers believe the business email accounts and defraud an organization. BEC has experienced a surge of 1,760% in attacks from 2022, largely due to advancements in generative AI tools. BEC is expected to continue growing due to the increase in remote work and digital communication channels.

Understanding why business email compromise is hard to spot

BEC attacks are difficult to detect as they often do not use malware or malicious URLs. BEC typically entails gaining access to an email system of a company, which deceives employees into thinking fraudulent emails are actually originating from the company’s executives themselves. BEC attacks are inconspicuous because most of the time they:

1. Use actual email addresses, sometimes hijacked or spoofed. Many of them imitate familiar communication techniques in order to make the scams less noticeable.
2. To encourage quick actions, appeal to human psychology with power or an imperative.
3. Avoid malware or dangerous links, as they can trigger detection systems.

Business email compromise vs. email account compromise and CEO fraud

Although the terms Business Email Compromise (BEC), Email Account Compromise (EAC), and CEO fraud are used interchangeably, each of them signifies a variant of a computer attack. A BEC attack is a form of Internet crime in which a criminal will impersonate a trustworthy person, such as an executive, supplier, or business partner, to deceive an employee into sending money or divulging sensitive information.

Email Account Compromise, on the other hand, is a type of intrusion in which scammers obtain physical access to emails to browse through and alter actual communications without impersonating someone else.

CEO fraud is centered on cyber attacks of senior executive impersonating a senior executive, an attempt to coerce an employee into making urgent or unauthorised payments.

Attack type	Definition	Primary target	Main objective	Example
Business email compromise (BEC)	Impersonation of trusted senders (executives, vendors, or partners) to manipulate victims into transferring funds or disclosing data.	Finance teams, executives, HR personnel.	Financial theft or access to sensitive data.	Fraudulent invoice sent from a spoofed supplier address.
Email account compromise (EAC)	Direct compromise of an authentic email account through phishing, malware, or credential theft.	Any employee with access to confidential systems or data.	Steal data, hijack communications, or facilitate larger BEC campaigns.	The attacker gains access to a real account and forwards invoices to themselves.
CEO fraud	A specific type of BEC where an attacker impersonates a senior executive to authorise fake payments or transfers.	Finance or administrative staff handling payments.	Immediate monetary theft via fraudulent transfers.	Fake urgent message from a “CEO” requesting a wire transfer to a supplier.

Common and new business email compromise scams

Cybercriminals are known to change their tactics often, combining older techniques of social engineering with the latest tools available, such as artificial intelligence and phishing via QRs. Here is an overview of the most traditional and some of the newest forms of business email compromise attacks:

Account compromise

It occurs when an employee’s email account is hacked and used to request payments from other employees or take other illegal actions. So, in this case, offenders access a valid corporate email account. Then they send messages using the real account to the employees, suppliers, or clients. Given that these emails are sent by trusted people, it is difficult to detect the fraud. This increases the success rate of the attacks.

Attorney impersonation

Criminals impersonate lawyers or other legal representatives. Such emails usually reflect cases of mergers, acquisitions, or compliance audits, and they pressure the recipients to make instant payments or provide sensitive documents. Attorney impersonation attacks target individuals by posing as a legal authority to coerce them into acting.

CEO fraud

This form of fraud is where the fraudsters impersonate executives or directors of a company, giving urgent instructions for secret money transfers. Employees may drop their guard and fail to do proper checks because they may believe the origins of the email to be from their boss. 

Data theft

Rather than monetary gain, other types of business email compromise fraud target the theft of important information such as payrolls, tax returns, account numbers, or trade secrets to obtain personal information. This stolen data will later be used to commit identity theft, insider trading, or be sold on the dark web.

Fake invoice scams

The false invoice scheme is when scammers send invoices to a business, hoping to channel legitimate payments to their own accounts. This is still one of the most economically harmful forms of business email scams in the world.

Voice cloning attacks

Cybercrime groups employ artificial intelligence to imitate the voice of an executive so that they can officially authorize a fraudulent transaction or confirm a suspicious request. This is a new threat that highlights how AI-influenced fraud is transforming the business email compromise protection game.

Quishing (QR code phishing)

QR codes and phishing are cleverly combined in “quishing”. The hackers send emails containing QR codes, which, upon scanning, direct unwitting victims to counterfeit websites or evoke malicious software downloads.

Conversation hijacking

With this approach, cybercriminals hack legitimate email communication, waiting until they can inject malware, and then, when the opportunity arises, they usually change payment details or add their own instructions.

How BEC attacks work

Business email compromise (BEC) attacks usually have a standard format, yet every phase is targeted at the particular person. Cyber criminals will take time to research victims and come up with messages that appear to be true. They often capitalize when the subject is busy or in distress. Organizations can identify the red flags in the initial stages of an attack by being aware of the various stages of a BEC attack and conducting regular security audits.

1. Research and targeting: Attackers begin by identifying their potential targets, delving deep into business organizations, social networks, and any available business details to the public. They are targeted at decision-makers, finance staff, and those who deal with transactions.
2. Initial contact and setup: The attacker will either compromise a legitimate email account or create a fake one that appears to be legitimate. They start by sending conversational messages to establish rapport, and then they proceed with their scam.
3. Deception and manipulation: After building trust, the attacker forges an emergency or secret request, usually in the guise of an invoice, supplier remittance, or an executive decree. The message is designed in such a way that it does not arouse suspicion by imitating the tone, format, and signature of the target.
4. Execution and diversion: After assuming that the request is authentic, the victim steps up and makes a financial transaction or provides sensitive information.
5. Cover-up and exit: Once the transaction is made, the attacker deletes all traces, changes inbox settings, or forwarding options to conceal his or her trails. When the fraud is detected, it is usually too late, as the money has been transferred to an irreversible location.

The psychology behind BEC attacks

Cybercriminals often lean on psychological tricks instead of just technical skills. They use social engineering tactics that take advantage of trust, respect for authority, and a sense of urgency. This is why business email compromise (BEC) scams are so effective.

Psychological tactic	How attackers use it
Authority bias	Impersonating a high-ranking executive or trusted partner to make requests appear legitimate.
Urgency and pressure	Creating time-sensitive scenarios, “This needs to be paid immediately”, to discourage verification.
Trust and familiarity	Using language, tone, and branding consistent with legitimate company communication.
Fear of repercussion	Making employees feel they’ll disappoint a superior or jeopardise a deal if they delay.
Reciprocity and obedience	Leveraging professional courtesy and respect for authority, especially in hierarchical organizations.
Curiosity and emotion	Triggering emotional responses, such as sympathy, “Help me finalise this donation”, or excitement, “You’ve been chosen for a bonus”.

5 BEC techniques

• Domain spoofing: In this case, attackers abuse similar domains with almost similar names to valid ones (e.g., replacing company.com with cornpany.com) and attempt to make recipients believe that it is a valid and reliable source.
• Social engineering: This is where people in a group are influenced to take on actions that they would not have thought about or considered, such as transferring funds or giving out important credentials. It is the main tactic of most BEC regulations.
• Compromised accounts: Once hackers gain access to an actual email account, they can use it to commit internal attacks or intercept communications between vendors and clients.
• Spear-phishing: These are very specific attempts of phishing that target individual people or individual departments. In most cases, these include personal information so that they appear more realistic.
• Malware: Attachments or links may allow an attacker to install malicious software that allows them to spy on activity, record keystrokes, or cannibalize data.

All of these tricks are devastating in their own right, however, when combined, they create multi-layered, complex attacks of BEC that can penetrate even the most sophisticated security protocols.

What do BEC emails usually contain?

Many such attacks may have certain similar characteristics. The following are some of the common characteristics of a business email compromise (BEC) attack:

• Email from the boss. This may be a CEO, CFO, supplier, or even a business partner.
• Urgency. These emails tend to be more insistent, urging immediate payments or the supply of information.
• Threatening or secretive. Scammers usually encourage the victim to keep requests secret.
• Account modification requests. Emails often request changes to vendor payment or wire transfer instructions.
• Suspicious domains. Slightly altered email addresses or inconsistent signatures are a clear red flag.
• Limited contact. Fraudsters may not want to make phone calls, but they insist that all communication remain on email.
• Emotional manipulation. These messages tend to pull on the sense of authority, loyalty, or the fear of losing business.

Educating staff to stop and verify any requests for any order that may feel even slightly off will go a long way to prevent business email compromise. Implementing a robust cybersecurity training program for employees can help defend against BEC attacks.

Common targets of BEC scams

In such attacks, scammers pick their targets by looking at the financial benefit, the availability of sensitive data, and the trust the employee has in their superiors. The main targets can be divided into two groups: organizations and individuals, emphasizing the need for user awareness to prevent BEC attacks.

Common target organizations

• Enterprises (both SMEs and large companies): Any organization that engages in frequent payments to its vendors or handles confidential data is at risk.
• Government organizations: Governments regularly deal with large vendor payments and frequently manage large-scale procurement initiatives, which makes them prime targets for attackers.
• Non-profit organizations: Charities and NGOs deal with donations and grants, and their administrative staff can be exploited to urgent funding requests.
• Schools and universities: Such institutions make numerous payments and are easy targets for attackers.

Specific target roles

• Finance employees: Individuals from the finance department are prime targets for fraudulent payment requests or changes to banking information.
• Executives (CEO/CFO/COO): The Company’s CEO and C-level employees are frequently impersonated in fraud schemes; their authority can lead staff to act quickly without questioning.
• HR professionals: They manage payroll and sensitive employee data, making them targets for attackers who want access to personal information.
• IT administrators: These roles are often targeted for account takeovers and access to internal systems; compromising IT accounts can facilitate broader EAC/BEC campaigns.
• New or entry-level employees: They may not be as familiar with internal policies and are more likely to comply with requests from perceived senior staff without verifying their legitimacy.

Risks and impact of BEC on organizations

Business email compromise losses extend beyond losing money. While direct financial loss is the most significant, other implications include operational disruptions and reputational damage. A frozen account and remediation efforts take time to resolve. Additionally, Published cases of BEC may actually instill fear in the customer.

A business email compromise scam can result in substantial fines and a breach of contractual obligations, as well as legal actions associated with these. Stolen payroll, tax data, account numbers, and personally identifiable information (PII) may be used to commit additional fraud, sold on the dark web, or used to commit identity theft through fraudulent bank accounts.

The after-effects of an attack have implications for insurance costs. Premiums on cyber-insurance might rise, or the claims might be refused if insufficient controls have been put in place. One of the most under-mentioned costs of an attack is the human cost. Employee morale and productivity also may suffer when employees are required to sit through an incident response.

Business email compromise examples

There are various ways scammers try to infiltrate businesses using emails. Here are a few examples of what these emails may look like:

Example 1: Fake supplier invoice (fake invoice scam)

Subject: Urgent: Final Invoice — ACME Supplies Ltd (Due Today)
Body: Hi [Finance name], we have a balance of $27,450 due today. Please process payment to the updated account below to avoid a service hold. New bank details: Sort code 60-XX-XX, Account 12345678. Please confirm once paid. Accounts, ACME Supplies

Example 2: CEO fraud (executive impersonation)

Subject: Quick Payment Request
Body: Hi [PA name], I’m sitting in an important meeting and need you to send an urgent wire transfer of £45,000. I need to complete this very confidential acquisition as soon as possible. Use the attached form and be sure to mark it as urgent. I ask for complete confidentiality on this matter. [CEO name]

Example 3: Conversation hijack (account compromise)

Thread: RE: Invoice from [Vendor]
Body (new message from compromised account): Apologies for the delay please note the payment should be sent to: IBAN GB29 XXXX 1234 5678 90 (NEW). We have updated our banking details. Please confirm transfer.

Future trends in BEC attacks

Threat actors are changing tactics fast. What is a business email compromise today may look very different next year. Following new trends can help anticipate how BEC schemes evolve in the coming years.

AI-powered sophistication

Artificial intelligence will be used more in automation and personalization of BEC campaigns. Attackers combine written messages with deepfake audio to realistically impersonate their target, while also embedding phishing links. This amplifies spear-phishing attempts.

Multi-channel attacks

BEC exploits will not be limited to email, but they will widen their scope to SMS, business messaging applications, voice communications, and even collaboration tools. Through channel multiplexing, the attacker can boost credibility by targeting several channels at the same time.

Exploitation of the vendor ecosystem

Service providers and third-party suppliers remain one of the ideal targets of the attack. Criminals are going to target supplier onboarding procedures, invoice movement, and vendor portals.

Advanced coversation hijacking

More criminals will perfect the art of distributing and hacking into authorized email messages. They will use lateral mobility and multi-step fraud techniques, which are more difficult to realize.

Automated attack scaling

Through automation tools, attackers will be able to search through thousands of organizations for potential targets, filter through published information to develop contextually sensitive lures, and automatically choose their victims.

How to protect yourself and your company against BEC scams

There are multiple layers involved in business email compromise prevention. A single-layer approach to defence is hardly adequate. Employee awareness, technical safeguards, monitoring, and incident response, along with optimized business processes, are beneficial components of a strong protection strategy to prevent future attacks.

Develop a cybersecurity training program for employees

Training staff on how to identify scam emails, including the need for email authentication protocols, checking of payments requested, and reporting any suspicious emails is important. Training of personnel whose errors are the primary entry point in the case of BEC attacks can reduce the risk of human error considerably.

Install secure email gateways (SEGs) and stipulate corporate email regulations

A secure email gateway (SEG) is necessary to filter both the incoming and outgoing messages in order to detect fraud patterns. Some business policies, such as restricting outside payment requests or suspicious file drops can prevent attempts before they reach employees.

Install software updates promptly

It is crucial to ensure that all systems and devices utilized by the company are kept up to date. Software updates should be installed as soon as they are available.

Set up two-factor/multi-factor authentication (2FA/MFA)

Verification procedures to gain access to an employee’s email account can significantly reduce the likelihood of account takeover.

Adopt AI-based email sifting systems

High-end AI solutions are able to identify typical trends in email tags, writing patterns, and sender behaviors. These systems will can identify suspicious messages prior to being delivered to the inboxes.

Establish additional confirmations before payments

Large payments should undergo additional verification processes, such as a phone call or face-to-face check.

Institute a Zero Trust strategy

Adopting a Zero Trust strategy implies presuming that none of the emails or devices are risk-free. Checking identities and implementing strict access measures can help reduce the threat of BEC attacks and curtail the traffic of compromised accounts.

Use user and entity behaviour analytics (UEBA)

UEBA tools monitor email habits and are able to identify anomalies, including abnormal logins, unusual file downloads, suspicious communication patterns, and unauthorized attempts to access login credentials.

Keep an eye on deep and dark web signs of business email compromise

Regularly search through leaked credentials, stolen data, or any reference of your company in the underground forums. Early detection of stolen information will help prevent account takeovers.

Make an inventory of threat actors who leverage BEC as an attack technique

Organizations should create an inventory of potential actors using BEC techniques to better understand threat dynamics. And monitor their identities, strategies, and organizations they tend to target.

Adopt Incident Response (IR) plan

Design an IR plan tailored to BEC incidents. Having it in place is essential for quickly addressing data breaches. Clearly define the procedures in containment, communication, financial validation, and reporting.

General tips to prevent BEC attacks

Even with all the technical defenses in place, adopting some simple behavioral practices, such as avoiding clicking on malicious links, can really make a difference in spotting the signs of phishing attacks and other evolving threats. Need the final checklist on how to prevent business email compromise? Check it below:

• Always be aware of emails that urge quick payments or ask you to share sensitive information.
• Double-check the sender’s email address. Tiny differences can be the clues you need to spot a spoofing attempt.
• Don’t rush, attackers thrive on pushing for quick decisions. Always verify requests on a secondary communication channel.
• Avoid recycling passwords and using the same password on different accounts. Always choose strong, unique passwords.
• Make it a habit to regularly review your financial and vendor approval processes.
• Foster a culture where reporting suspicious emails is encouraged, and no one feels blamed for doing so.

Can BEC attacks be stopped by Secure Email Gateways (SEGs)?

While SEGs are very effective at identifying phishing and spam, BECs are a different matter altogether. Attackers often use legitimate accounts, making the sender appear genuine. Spoofed emails are designed to mimic the appearance and signature of your domain, making it difficult to identify them.

Many messages do not have shady links or attachments, and to the scanner, they appear innocent. SEGs would reduce the risk; however, they are most effective when implemented in combination with staff training, MFA, behavioral monitoring, and a layered security approach.

The worldwide effect of BEC

One of the most expensive cyber threats in existence is Business Email Compromise. According to the FBI, BEC frauds cost billions of dollars, and companies of all sizes are affected. In contrast to ransomware or malware, BEC tends to surprise people, is readily spread, and is hard to detect.

BEC’s global reach means that governments, firms, and banks have to exchange information. Large firms operating in multiple nations are confronted with transnational litigation woes whenever incidents merge. Particularly prone are such high-stakes industries as banking, real estate, and tech.

Business email compromise statistics for 2025

• $55 billion scam — The FBI reported that BEC scams have resulted in over $55 billion in exposed losses over the past decade.
• Email compromise frequency — Around 30% of reported cyber incidents in enterprises involve some form of BEC attack.
• CEO impersonation prevalence — Nearly 60% of BEC incidents involve impersonation of executives.
• Average loss per incident — Organizations report average financial losses between $100,000 and $250,000 per successful attack.
• Recovery difficulty — Less than 30% of funds stolen via BEC are recovered, highlighting the urgency of preventative measures.

Regulatory and legal requirements

Organizations affected by BEC face compliance obligations under data protection and financial regulation laws:

• Data privacy laws require rapid breach notification if personal data is exposed.
• Financial regulations may demand reporting of fraudulent transfers to authorities and auditors.
• Insurance requirements: insurance policies often stipulate specific prevention measures; failure to implement controls may reduce coverage.
• Corporate governance: Boards and executives are increasingly held accountable for lapses in cybersecurity policies.

Real-world notable BEC incidents

Facebook and Google (2013-2015)

Source

Invoices that copied the letterhead and bank details of a real European parts supplier were sent to Facebook and Google. The entities paid the invoices for more than a year, losing about one hundred million dollars. The incident shows that firms that build complex systems still pay fake bills if the papers look correct.

Ubiquiti Networks (2015)

Source

An email sent to the finance team claimed to come from the chief executive and from the external law firm. The messages told staff to move $46.7 million to overseas accounts. The staff sent the money in several wire transfers. The company later stated that it skipped normal phone checks and approved the requests by email alone.

Mattel Inc (2016)

Source

A message that looked as if it came from the chief executive told a finance worker to wire three million dollars to a bank in Wenzhou, China. The worker sent the money the same day. Mattel recovered the funds only because the transfer landed on a Chinese national holiday and the bank held the payment. The message used the name of the real boss and the word “urgent,” a combination that fraudsters rely on.

Children’s Healthcare of Atlanta (2018)

Source

In a concerning breach, attackers specifically targeted Children’s Healthcare of Atlanta, a major pediatric healthcare provider. By spoofing the domain of a construction partner and impersonating the partner’s CFO, the criminals submitted fraudulent payment instructions on forged letterhead. The deception led to the redirection of $3.6 million to accounts controlled by the attackers.

Toyota Boshoku Corporation (2019)

Source

Toyota Boshoku Corporation, a prominent Japanese automotive supplier, suffered a $37 million loss following a highly sophisticated BEC attack. The perpetrators exploited the company’s considerable size and complex internal structure to initiate large fund transfers without immediate detection, highlighting how cybercriminals take advantage of organizational scale to execute major financial frauds.